The Moon and Earth rotate around a point that's quarter way from Earth's core to it's surface. That causes Earth to travel around the Sun on a slightly sinusoidal path.

It's amplitude is close to 10000 km, but if Earth's orbit was the size of a bicycle wheel the bumps would be around 4 microns tall, which is a hundred times too small for a human finger to feel it. And a human finger is nothing to sneeze at - it can feel the difference of height of single layer of teflon molecules.